MyAirbags Q&A: How much voltage should I have on my Ford FICM 6.0 ?

The FICM should be getting 48v as this is the proper voltage required if it drops lower than that then again check the former steps to make sure that there’s nothing in the truck causing voltage fluctuations.

Q: Can you increase the voltage from 48 to 52? A: No, we do not alter or change the current voltage on the units.